* {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

.top {
    background-image: url("../img/banner_qtah.jpg");
    height: 808px;
    background-size: 100% 100%;
    color: white;
}

.top a {
    text-decoration: none;
    color: white;
}

.top > div:first-child {
    height: 141px;
    /*border: 2px solid red;*/
    display: flex;
    justify-content: center;
    /*
    上右下左  四周5px
    上下  左右  5px
    上   右左    下
    上 右  下 左
    */
    /*margin: 5px;*/
    /*margin: 5px 5px;*/
    /*margin: 5px 5px 5px;*/
    /*margin: 5px 5px 5px 5px;*/
}

.top > div:first-child > div {
    /*border: 1px solid blue;*/
    width: 1000px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top > div:first-child > div:first-child > div:first-child {
    height: 141px;
}

.top > div:first-child > div > div:nth-child(2) {
    display: flex;
    align-items: center;
}

.top > div:first-child > div > div:nth-child(2) > div {
    margin: 0 5px;
}

/*---------------nav导航-----------------------*/
.top > div:nth-child(2) {
    height: 50px;
    background-color: rgb(230, 145, 55);
    display: flex;
    justify-content: center;
}

.top > div:nth-child(2) > div {
    width: 1000px;
    /*border: 1px solid red;*/
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.top > div:nth-child(2) > div > a {
    height: 50px;
    /*行高  字体上下居中*/
    line-height: 50px;
}

.top > div:nth-child(2) > div > a > div {
    padding: 0 20px;
}

.top > div:nth-child(2) > div > a > div:hover {
    color: rgb(230, 145, 55);
    background-color: white;
}

/*---------------------------------------*/
.top > div:nth-child(3) {
    display: flex;
    justify-content: center;
}

.top > div:nth-child(3) > div {
    width: 1000px;
    /*border: 1px solid red;*/
}

.top > div:nth-child(3) > div:first-child > div:nth-child(1) {
    font-size: 40px;
    margin: 50px 0 30px;
}

/*.ad > div:nth-child(1) {*/
/*    font-size: 40px;*/
/*}*/
.top > div:nth-child(3) > div:first-child > div:nth-child(2) > div {
    /*line-height: 30px;*/
    margin: 10px 0;
}

/*广告的第三个div*/
.top > div:nth-child(3) > div:first-child > div:nth-child(3) > div {
    /*line-height: 50px;*/
    font-size: 30px;
    margin: 20px 0;
}

.top > div:nth-child(3) > div:first-child > div:nth-child(3) > div:first-child {
    display: flex;
    align-items: flex-end;
    height: 50px;
}

/*odd奇数 even 偶数*/
.top > div:nth-child(3) > div:first-child > div:nth-child(3) > div:first-child > div:nth-child(even) {
    color: rgb(230, 145, 55);
    font-size: 40px;
}

.top > div:nth-child(3) > div:first-child > div:nth-child(3) > div:first-child > div:nth-child(2) {
    margin-right: 30px;
}

.top > div:nth-child(3) > div:first-child > div:nth-child(3) > div:nth-child(2) {
    color: rgb(230, 145, 55);
    font-size: 40px;
    text-indent: 1.5em;
}

/*------------------------中间内容部分公告部分---------------------------------*/
.middle > div {

    margin: 50px 0;
    width: 1000px;
}

.middle {
    display: flex;
    justify-content: center;
}
.title-bar {
    height: 50px;
    line-height: 50px;
    font-size: 30px;
    padding: 10px;
    border-bottom: 1px solid red;
    color: rgb(230, 145, 55);
}